控制增益对永磁同步电动机自抗扰控制性能的影响  

Influence of Control Gain on Active Disturbance Rejection Controller for PMSM

作　　者：左月飞[1] 李明辉[2] 张捷[1] 刘闯[1] 张涛[1] 

机构地区：[1]南京航空航天大学自动化学院,南京210016 [2]中国人民解放军空军西安航空四站装备修理厂,西安710077

出　　处：《电工技术学报》2016年第3期58-65,共8页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金(51377076);江苏省"六大人才高峰"项目(YPC13013);江苏省产学研资金(BY2014003-09)资助

摘　　要：在永磁同步电动机自抗扰控制系统中,当系统的实际控制增益已知时,采用实际控制增益的控制器可获得良好的控制性能,但当系统的实际控制增益未知时,采用估计控制增益的控制器会对系统性能产生影响。将估计控制增益与实际控制增益的比值定义为增益比,分析了它对闭环系统的阶跃响应、抑制噪声性能、抗扰性能以及对连续变化输入的跟踪性能的影响。理论分析表明:增益比越大,则系统阶跃响应的上升时间越短,抑制噪声的效果越好,但抗扰性能越差;增益比越接近于1,系统对连续变化输入的跟踪性能越好。仿真和实验验证了理论分析的正确性。In the active disturbance rejection control （ADRC） system for the permanent magnet synchronous motor （PMSM）, a good control performance can be gotten when the control gain is known. An estimated control gain, used in the ADRC controller when the control gain of the system is unknown, will affect the control performance. In this paper, the ratio between the estimated control gain and the real control gain is defined as the control gain ratio, whose effects on the step response, the noise immunity, the ability of rejecting disturbance, and the performance of continuously tracking the varying input is also analyzed. Theoretically analysis indicates that the shorter rising time of the step response and the better noise immunity while the worse disturbance rejection ability will be acquired with higher control gain ratio. Meanwhile, the advanced tracking performance will be achieved when the ratio approaches one. The Extensive simulation and experiment tests are performed to verify these conclusions.

关 键 词：永磁同步电动机 自抗扰控制 控制增益 跟踪 噪声 抗扰 连续变化输入 

分 类 号：TM351[电气工程—电机]